diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index b89c548ec3f88612eb4a6fec4d6230ad413ed9c1..e24143cc2040b7f3f8f90a63c3b1b2cfe2b21c24 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -1016,6 +1016,7 @@ static void __map_bio(struct dm_target *ti, struct bio *clone,
 		/*
 		 * Store bio_set for cleanup.
 		 */
+		clone->bi_end_io = NULL;
 		clone->bi_private = md->bs;
 		bio_put(clone);
 		free_tio(md, tio);